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GENMAX Portable Generator,4000W ultra-quiet145cc Engine &Parallel and Series Ready, EPA & CARB Compliant, Eco-Mode Feature, Ultralightweight for Backup Home Use & Camping (GM4000iSAPC)

  • Based on 2,125 reviews
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Arrives Sunday, Aug 9
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Style: GM4000iSAPC


Features

  • Strong PowerThe GENMAX 4000iSAPC Starting Watts Inverter Generator is powered by a 145cc 4- stroke OHV gas engine,with inverter technology and Maganetic dipstick produce 4000 Starting Watts/ 3200 Running Watts clean power (less than 3% THD), confidently connect your sensitive electronics such as TV, lights, fans, small power tools and more on camping trips, etc
  • Silent And Ultra LightweightAt only 56.8pounds, Light weight and compact , The sturdy handle makes it easy to carry for long distance.The fully enclosed design greatly reduces noise levels and is very quiet to use
  • Digital Control Center The Digital Control Center features an LCD display showing hours run, voltage output, and load level
  • Parallel&Series Connection CapabilityTwo 120v generators are combined into a 240V generator using a dedicated series parallel box (the series parallel box is sold separately)
  • Co Detect Automatically turns off the generator when an unsafe level of carbon monoxide is detected.
  • GENMAX SupportIncludes 3-year warranty with FREE lifetime technical support from experts.

Brand: GENMAX


Wattage: 4000


Fuel Type: Gasoline


Power Source: Gas-Powered


Recommended Uses For Product: Residential


Item Weight: 56.8 Pounds


Voltage: 4000


Output Wattage: 4000 Watts


Special Feature: ‎Maganetic dipstick,Portable, Super Quiet


Included Components: 1


Wattage: 4000


Fuel Type: Gasoline


Power Source: Gas-Powered


Recommended Uses For Product: Residential


Voltage: 4000


Output Wattage: 4000 Watts


Additional Features: ‎Maganetic dipstick,Portable, Super Quiet


Engine Type: 4 Stroke


Ignition System Type: [NS]


Tank Volume: 3.6 Gallons


Engine Displacement: 145 Cubic Centimeters


Total Power Outlets: 1


Engine Power Maximum: 4 Kilowatts


Starting Wattage: 4000 Watts


Running Wattage: 3200 Watts


Smart Home Compatibility: Not Smart Home Compatible


Frequency: 60 Hz


Runtime: 9 hours


Brand Name: GENMAX


Included Components: 1


Model Name: GM4000iSAPC


Model Number: GM4000iSAPC


UPC: 742332650859


Manufacturer: GENMAX


Manufacturer Part Number: 4000W


Unit Count: 1.0 Count


Item Type Name: GENMAX Portable Inverter Generator,4000W ultra-quiet145cc engine &Parallel and Series Ready, EPA & CARB Compliant, Eco-Mode Feature, Ultralightweight for Backup Home Use & Camping (GM4000iSAPC)


Warranty Description: 2


Item Weight: 56.8 Pounds


Item Dimensions L x W x H: 19.1"L x 11.2"W x 17.9"H


Color: orange


Material Type: Plastic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 9

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • No issues so far
Style: GM4000iSAPC
I bought two of the 4000W/3200W generators for a trip with my camper, but I had to cancel that trip. So, they say in the box for about 9 months until a hurricane knocked out my power for 6 days. I unboxed one of the two generators I bought, read the instructions, filled it with oil and gas, pulled the cord and it started right up. First pull. And it started within three pulls every time over the next 5 days until the power was restored. I was able to run several fans, a refrigerator and an upright freezer as well as keeping electronics charged. I didn't have a single issue with that generator. It is a bit heavy and I wish it had a little bit larger fuel tank, but they don't impact my overall thoughts on the unit since it works so well. It is also not the quietest generator out there, but it's also far from the loudest. I think for its size, it's perfectly acceptable, especially when run in eco mode. If you don't have much of a load, it isn't very loud at all. I highly recommend this generator if you need one of this size. My next thing to test out is hooking up the two generators together to see how that works. Hopefully, by the time the next storm hits, I'll have a transfer switch hooked up to the house that I can plug into and will run both of them together with the parallel kit. ... show more
Reviewed in the United States on July 26, 2024 by Kevin Mueller

  • Don’t buy
Style: GM4000iSAPC
Unboxed, put oil and gas in it, fired up and sounded great. Followed break in procedure to the tee. The first time I really tried to use it, not only 3 weeks old, still brand new it just quit, no sensor alarm or anything, just flat shut off. Went to try to start it back up and it was really hard to pull. I checked for hydrolock, that’s not what it was. No strange sounds like motor was locking up or anything like that either. Something very strange happened, but now I have a nice bright orange boat anchor. My experience was absolutely terrible with this generator and I strongly suggest against it. ... show more
Reviewed in the United States on December 12, 2025 by Amazon customer

  • Runs Quiet as Stated.
Style: GM4000iSAPC
Very good purchase, quiet and powerful. Starts on 1st crank. Very Satisfied so for.
Reviewed in the United States on September 25, 2024 by BUBBA KING

  • Checks all of the boxes
Style: GM4000iSAPC
The inverter was well packaged and came with the items needed to add oil and service the unit. It runs quiet and handles my RV loads with no issues. The one small issue I had was handled quickly with just one phone call to their customer department. The call was answered promptly and the issued resolved on that one call. ... show more
Reviewed in the United States on November 29, 2023 by Danny Woodard

  • Nice, but loud.
Style: GM4000iSAPC
Packaged well, started up on 2 pull, ran smooth. Twice as loud as my Honda 1000, but for the $$ it is really nice. Super light for a 4000 compared to others I saw. 5 stars for what you get for the money. Lets hope it holds ups
Reviewed in the United States on July 29, 2023 by Jdozer

  • Excelente Compra 👍
Style: GM4000iSAPC
Llevo 2 semanas con el generador y hasta el momento todo bien funciona según las instrucciones muy conforme con la compra.
Reviewed in the United States on December 15, 2024 by Jay

  • No Power or adapter bad
Style: GM4000iSAPC
Uses a three prong adapter for the RV trailer 30 amp electrical cord and had to giggle it several times to get it to charge my batteries. Not sure if the adapter is bad or what but I wouldn't power my micro wave either. I guess you get what you pay for.
Reviewed in the United States on August 5, 2024 by Ralph G. Torres

  • Defective product.
Style: GM4000iSAPC
Defective product. Could not generate 30 amp power. Ran just fine for standard 115 volt power, but shut down when turn on the air conditioner for the RV which draws 30 amps.
Reviewed in the United States on September 1, 2024 by Shannon Jerome Gibson

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